Condenser



S. G. BARNSTEAD.

CONDENSER.

APPLICATION FILED AUG.4, 1920.

1 ,41 1 1 50. Patented Mar. 28, 1922.

lhl I Invenir, I Sidney Gfim'nswi ummn STATES '1 TENT OFFICE.

G; BAZBZN'STEAD,- 0F CAIBRJDGE,\MASSACHUSETTS;

Specification of Letterslatenti Mar. 28,.

Application filed August 4, 1920 Serial No. 401,162.

To all whom it may concern: 1

Be it known that I, SIDNEY G. BARNS'JEAD,

a citizen of the United States, and a resident of Cambridge, in thecounty of Middlesex and Commonwealth of Massachusetts, have inventedcertain new and useful Improve.-

' ments in Condensers, of which the following is a full, clear, andexact specification.

The object of this invention is the construction of an improved devicefor the condensation of water froma still, the same being especiallydesigned for use in connection with a boiler heated by means. of a asburner. My improved condenser consists essentially of two concentricspaced cylinders into the annular chamber of which cold 7 water issupplied, and through the inner Fig. :2 is a cross section on the line22 in Fig. 1. a

The steam producing portion of the still consists of a casing 1 providedwith an apertured base 2 which supports a burner 3. Above the burner isa hollow ring 4 adapted to receivewater through a tube 5, and havingnumerous vertical tubes 8 connecting it with the receptacle 6. Thisreceptacle films a. mouth 7 and a flange 9 provided with openings 10 forthe escape of the products of combustion. Upon this mouth 7 there isfastened by means of thumb-nuts 11 a plate 12 from which rises the vaporescape pipe 13, the upper end of the latter having an elbow 14 whichopens into the condenser proper. i 7

As shown in Fig.2, the body of this condenser is composed of two sheetmetal cylintiers of unequal diameter, the smaller being spaced withinthe larger to form an annular space 15, The outer cylinder 16 and theinner cylinder 17 are attached to 'heads 19 and 20 which taper down toa. fit on the elbow 14, the head 19 tapering more thanthe head 20 inorder to be brazed or soldered thereto as Well as to the elbow.

The head 21 at the other end of the cylin-. ders is stepped to providetwo seats 22, 23 for the reception of the two cylinders, and to renderthe annular chamber 15 water tight in its separation from the chamber 24within the cylinder 17.

A constant supply of cold water is supplied to the annular chamberthrough a. pipe 25 leading into the lowermost part of the same, and thecirculation is maintained I therein by the outlet pipe 26 rising fromthe highest p r f he Chamber 24 and then descending to apoint directlyover the cup 27. This cup is supported by and communicommunicates withthe tube 5 so that the water from the chamber 24 passes to and"maintains the supply in the boiler tubes and receptacle 6. Whenever thelevel in this receptacle rises above the holes in the small tube 30located within the tube 29, the ex cess escapes through such holes 31down through the pipe 30 to any suitabledrainage.

The cook 32 is for the purpose of draining out the boiler tubes andreceptacle whenever desired, and also for obtaining a supply of hotwaterfor any purpose.

\Vithin the chamber 24 and attached to I the upper wall thereof is anoblique partition 33 whose lower edge and side edges'are spaced from thecylinder 17 as shown in Fig. 2, its obliquity being such that its loweredge is farther away from the elbow 14 than its upper end.

At the lowermost part of the head 21 is an outlet pipe 34 for thedelivery of the distilled water to any desired receptacle.

The operation of this still is as follows: As the water in the boilertubes 8 and the receptacle 6 is put into ebullition through the effectof the heat from the burner 3, the vapor arising therefrom passesthrough the pipe 13 and thence into the chamber 24.

Here it meetsthe oblique partition 33-and is diverted into directcontact with the portion of the cylinder 17 nearest the edges of thepartition, and also nearest the freshest and coldest part of theinflowing water'coming from the pipe 25. Consequently, the steam andvapor passing down the chamber 24 is quickly condensed to water anddescends through the pipe 34.

What I claim is:

A condenser comprising two concentric spaced unequal slightly inclinedcylinders. the space between the cylinders having 70 cates with a tube29 whose lower portion mar means for the circulation of a cooling fluidI through it, and the inner cylinder having lower end of'the plate beingfarther from the vapor-entrance than its upper end.

1 In testimony that Ifclmm the foregoing 10 invention, 1 have hereuntoset my hand this 31st day of July, 1920; f

. SIDNEY G. BARNISJTEAD.

